Clinical Research Directory

Inclusion Criteria: * Male or female ≥18-85 years old * Confirmed diagnosis of ET, characterized by meeting the following criteria: (a) the presence of a bilateral upper limb action tremor that occurs in isolation; (b) a minimum duration of 3 years; and (c) the tremor may or may not be present in other areas such as the voice, or lower limbs * ET characterized by a TETRAS-P score of at least 1.5 in either the forward posture, wing beating posture, or finger-to-nose movement of at least one upper extremity * Female patient: post-menopausal woman having at least 12 months of natural amenorrhea without any alternative medical cause, or woman of childbearing potential using a highly effective method of contraception for the duration of the trial and for 1 month after stopping the investigational medication Exclusion Criteria: * Severe tremor, defined as patient with ET characterized by a TETRAS-P score of ≥ 3 in either the forward posture, wing beating posture, or finger-to-nose movement of at least one upper extremity, or tremor of trunk * Isolated head tremor not accompanied with tremor of any other body part * Medical history or clinical evidence of any other conditions, whether medical, neurological, or psychiatric, that could potentially explain or contribute to the presence of tremors * Patient who takes a medication which may induce tremor * Direct or indirect injury or trauma to the nervous system within 3 months before the onset of tremor * Concomitant treatment with more than three drugs to treat ET * Any prior procedures for the treatment of ET such as deep brain stimulation, brain lesioning, or magnetic resonance (MR)-guided procedures, including MR-guided focused ultrasound